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Sir please tell me the security code of N 73The
serial number is 357652016479476 my girlfriemd used my nokia n73 phone and changed the security code on
it now i can not put a sim card or put the usb cable from the phone to
the pc because as soon as i turn on the phone it ask me for the lock
code..can you please helpmy imei number is 357652016479476

When you enter wrong code for more than 5 times your mobile gets locked,so if you enter master code/unlock code also your mobile will not get unlock.....Solution :just switch off your mobile ,start it after 15 minutes and enter the unlock code i have given below i.e :5335036136Your mobile IMEI no is :356406017443168

Sir I entered Menu ...tools...settings......security...phone and sim....lock code ...Here it asks for a lock code ..which i have forgotten,...I entered many codes but it ain't working and it is not asking for a master code...It just says ... lock ocde entered incorrect five times phone will unlock in five minutes...Please guide what to do...

If you need the SIM Pin number to switch the phone on, then you have to enter any Pin number 4/5 times, then the phone will request a PUK number. This number was on the plastic card that your SIM card was attached to. If you don't have it, only your Network Service Provider can supply it to you.

If it's the Security code you need, to get into certain settings IE. Erasing received calls, missed calls, timers etc... The Nokia default is 12345 if you didn't change it, but if you did change it and you've forgotten it, let me know, I'll tell you how to retrieve it. The IMEI number doesn't have anything to do with the SIM Pin number. It is used to identify, track, and Blacklist your phone.

If you need the SIM Pin number to switch the phone on, then you have to enter any Pin number 4/5 times, then the phone will request a PUK number. This number was on the plastic card that your SIM card was attached to. If you don't have it, only your Network Service Provider can supply it to you.

If it's the Security code you need, to get into certain settings IE. Erasing received calls, missed calls, timers etc... The Nokia default is 12345 if you didn't change it, but if you did change it and you've forgotten it, let me know, I'll tell you how to retrieve it. The IMEI number doesn't have anything to do with the SIM Pin number. It is used to identify, track, and Blacklist your phone.

If you need the SIM Pin number to switch the phone on, then you have to enter any Pin number 4/5 times, then the phone will request a PUK number. This number was on the plastic card that your SIM card was attached to. If you don't have it, only your Network Service Provider can supply it to you.

If it's the Security code you need, to get into certain settings IE. erasing received calls, missed calls, timers etc... the Nokia default is 12345 if you didn't change it, but if you did change it and you've forgotten it, let me know, I'll tell you how to retrieve it.